What is the waiting behavior of the `getBy*` locators in Playwright?


Sure, let's dive into getBy* locators in Playwright. These locators are pretty smart - they automatically wait for the element to show up in the DOM. This is super handy when dealing with dynamic web pages where elements might take a bit to load or become visible.

Here's an example. Let's say you're using page.getByTestId('elementId'). Playwright will patiently wait until an element with the specified test ID (data-testid) pops up in the DOM before returning it. This means you always get a valid reference to the element and don't have to worry about timing issues when elements aren't immediately available.

import { test } from '@playwright/test';

test('getByTestId example', async ({ page }) => {
  await page.goto('https://ray.run');
  const element = await page.getByTestId('elementId');
  // your test code here

This automatic waiting behavior of getBy* locators makes your tests more reliable and resilient. You can write code that assumes elements are already present in the DOM without worrying about explicit waits or timeouts.

Just remember, this waiting behavior is specific to getBy* locators. If you're using a different type of locator or method, make sure to check its documentation for information on waiting behavior.

In a nutshell, getBy* locators in Playwright handle timing issues automatically, simplifying your test code and boosting test stability.


Thank you!
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Rayrun is a community for QA engineers. I am constantly looking for new ways to add value to people learning Playwright and other browser automation frameworks. If you have feedback, email luc@ray.run.